FACTORS AFFECTING AGE AT MATURITY AND AGE AT FIRST CONCEPTION IN HOLSTEIN-FRIESIAN X SAHIWAL CROSSBREDS
The data on 659 and 681 records of different crosses of Holstein-Friesian X Sahiwal crossbreds on age at maturity (first observed heat) and age at first conception respectively were analyzed. The data was spread over 17 years from 1974 to 1990. The overall least squares means and SE for age at matur...
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| Format: | Article |
| Language: | English |
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University of Agriculture, Faisalabad
2000-01-01
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| Series: | Pakistan Veterinary Journal |
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| Online Access: | http://pvj.com.pk/abstract/20_1/10.htm |